After killing the men
who tried to steal her father’s research, Juliet—along with Montgomery,
Lucy, Balthazar, and a deathly ill Edward—has escaped to a remote estate
on the Scottish moors. Owned by the enigmatic Elizabeth von Stein, the
mansion is full of mysteries and unexplained oddities: dead bodies in
the basement, secret passages, and fortune-tellers who seem to know
Juliet’s secrets. Though it appears to be a safe haven, Juliet fears new
dangers may be present within the manor’s own walls.

Then Juliet
uncovers the truth about the manor’s long history of scientific
experimentation—and her own intended role in it—forcing her to determine
where the line falls between right and wrong, life and death, magic and
science, and promises and secrets. And she must decide if she’ll follow
her father’s dark footsteps or her mother’s tragic ones, or whether
she’ll make her own.

With inspiration from Mary Shelley’s
Frankenstein, this breathless conclusion to the Madman’s Daughter
trilogy is about the things we’ll sacrifice to save those we love—even
our own humanity.